IOS6 BETA Activation Required?

I downloaded ios6 beta and used it, then when ios6.1 came out i updated to that because i had Wi-Fi at the time. When my iphone informed me that ios6.2 was out, i knew i was screwed because i had no Wi-Fi and i was on holiday, i know that if you don't update within 2 days the server shuts down and your iphone gets locked. So i wake up one morning only to find that my iphone is saying "Activation Required" i don't have a developer account, and i didn't know you needed one for the beta, yes i'm pretty stupid for downloading this beta not knowing what i was getting myself into, and i have definitely learnt my lesson. But i really want to be able to use my iphone again, i can't live without it! I need a solution Please. I tried putting it in DFU mode then restoring (because there's no way it would let me restore normally) and it started the process and at the end itunes just said unknown error, the iphone could not be restored. Then i tried downloading 5.1.1 separately and doing shift restore but that wouldnt work either. I'd rather not jailbreak my iphone because i'd lose my warranty. But i would do anything else to get my iphone working again, i don't care if my stuff gets deleted (i copied my photos and videos onto my computer) please help.

For to purchase activation from a developer the UDID google it and will find it think it's $9